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[release] Boost 1.87.0
by Marshall Clow 12 Dec '24

12 Dec '24

Release 1.87.0 of the Boost C++ Libraries is now available. These open-source libraries work well with the C++ Standard Library, and are usable across a broad spectrum of applications. The Boost license encourages both commercial and non-commercial use. This release contains two new libraries: * Boost.Parser: A framework for building parsers, from Zach Laine. The release also contains numerous enhancements and bug fixes for existing libraries. For details, including download links, see … [View More]

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[release] Boost 1.87.0 beta 1 released
by Marshall Clow 16 Nov '24

16 Nov '24

Boost release 1.86.0 beta 1 is now available at: https://archives.boost.io/beta/1.87.0.beta1/source/ The SHA256 checksums are: 2e7cdf358526e8937b36b93fc96c501b8d6a0c8436e95e65440de31c48ec3086 boost_1_87_0_b1.tar.bz2 98a86940c13509dfd0288a3075280f46a76c9a3faeb8a9bf49ca7f9e6a271995 boost_1_87_0_b1.tar.gz 2ca4c019d0c96fd160dec5292a7a6bfcf7b4e592cd238a2207e17084f8021d08 boost_1_87_0_b1.zip 5ea32facd963dbb79ceb5bda7ef7546017ea5da854158f8933bbad74d6bbe622 boost_1_87_0_b1.7z This is slightly … [View More]

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Unable to find boost atomic library header files//boost-1.84.0
by Pawan Badganchi 15 Oct '24

15 Oct '24

Hi, I am trying to resolve below error. Tried adding below path to atomic.cmake custom file but still failing with same issue. Could you please help here? include_directories( ${Boost_LIBRARY_DIRS}/atomic/test ) ERROR: Compilation failed Stdout: [ 50%] Building CXX object CMakeFiles/test_atomic.dir/atomicity.cpp.o Stderr: /sdk/sysroots/core2-64-poky-linux/usr/share/doc/boost-atomic/examples**/atomicity.cpp:38:10: fatal error: test_clock.hpp: No such file or directory 38 | #include "… [View More]

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[boost] Boost.LEAF in Embedded Systems (CppCon)
by Vinnie Falco 23 Sep '24

23 Sep '24

At CppCon 2024 the C++ Alliance sponsored a program to interview conference goers about Boost-related topics. This is the first video in the series: Boost.LEAF in Embedded Systems: Insights from Ex-Google Engineer Khalil Estelle at CppCon https://www.youtube.com/shorts/BksBxnTLltY Enjoy! Thanks

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[PFR] names_as_array doesn't work for structs with array fields
by Chinmay Dalal 23 Sep '24

23 Sep '24

Hi, `boost::pfr::names_as_array<T>()` does not compile if `T` has an array member. Someone commented a fix on a similar issue: https://github.com/boostorg/pfr/issues/170 What would be the appropriate place to ask for including this fix? Background: I'm trying to print structs as CSV. I came up with this: https://paste.sr.ht/~p00f/667e013c23c991ddec91e9cdaa00bd3c11cb2ceb But as soon as I include an array member: https://paste.sr.ht/~p00f/aa08531cd100f8b94c49ead2c541ff96f55b362e it … [View More]

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Boost.Asio UDP sockets guarantee for ordering
by Kalesis, Ioannis 18 Sep '24

18 Sep '24

Hello, I am using boost.asio for udp sockets to broadcast multicast traffic. For that, I am using async_send methods. I am aware that there is no guarantee for the order of the completion handlers for the async_send calls, and for that reason I have implemented a queueing mechanism, where the coroutine waits for the current async_send to complete before moving forward to the next call. However, given the low latency requirement of the application, I believe that the following approach may be … [View More]

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Re: [Boost-users] Boost-users Digest, Vol 5734, Issue 1
by Oran Johnson 09 Sep '24

09 Sep '24

Any ideas as to how to correct the following? johnson@fedora:~/opensource$ svn co https://svn.boost.org/svn/boost/sandbox sandbox svn: E170013: Unable to connect to a repository at URL 'https://svn.boost.org/svn/boost/sandbox' svn: E000111: Error running context: Connection refused ________________________________ From: Boost-users <boost-users-bounces(a)lists.boost.org> on behalf of boost-users-request(a)lists.boost.org <boost-users-request(a)lists.boost.org> Sent: Tuesday, … [View More]August 27, 2024 8:00 AM To: boost-users(a)lists.boost.org <boost-users(a)lists.boost.org> Subject: Boost-users Digest, Vol 5734, Issue 1 Send Boost-users mailing list submissions to boost-users(a)lists.boost.org To subscribe or unsubscribe via the World Wide Web, visit https://lists.boost.org/mailman/listinfo.cgi/boost-users or, via email, send a message with subject or body 'help' to boost-users-request(a)lists.boost.org You can reach the person managing the list at boost-users-owner(a)lists.boost.org When replying, please edit your Subject line so it is more specific than "Re: Contents of Boost-users digest..." Today's Topics: 1. Accessing the Boost Sandbox (oranjsr(a)gmail.com) ---------------------------------------------------------------------- Message: 1 Date: Mon, 26 Aug 2024 10:00:58 -0400 From: <oranjsr(a)gmail.com> To: <boost-users(a)lists.boost.org> Subject: [Boost-users] Accessing the Boost Sandbox Message-ID: <010601daf7c0$60c585b0$22509110$(a)gmail.com> Content-Type: text/plain; charset="utf-8" Hi, I'm looking at a source forge project with the following required libraries: 1) Boost version 1.39 or later 2) TBB (Threading Building Blocks) version 2.1 or later 3) MSM (Meta State Machine) version 1.2 or later 4) Boost Logging Library v2 #3 appears to be in the boost sandbox Does boost sandbox still exists? Boost Sandbox When boost was developed using subversion, the Boost Sandbox contained unreviewed code that is intended to eventually become a part of the Boost libraries. New libraries should be developed separately as <https://svn.boost.org/trac/boost/wiki/ModularBoost> git modules, and existing projects should be <https://svn.boost.org/trac/boost/wiki/ExtractSandbox> moved to GitHub. The sandbox remains as a historical record. Accessing the Boost Sandbox The Boost Sandbox lives at <https://svn.boost.org/svn/boost/sandbox> https://svn.boost.org/svn/boost/sandbox within the old Boost Subversion repository. Regards Oran [View Less]

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[filesystem] why is this file not found?
by Michael Burr 04 Sep '24

04 Sep '24

I'm having difficulty using boost/filesystem.hpp on a simple test example. If I understand things correctly, this code should see if it can find the files called "test_file" and "test_file2" in the current directory. ``` #include <boost/filesystem.hpp> #include <iostream> using namespace boost::filesystem; int main() { path file1 = "test_file", file2 = "test_file2"; if(status(file1).type() == file_not_found) std::cout << "First file not found\n"; if(status(file2).… [View More]

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Accessing the Boost Sandbox
by oranjsr＠gmail.com 26 Aug '24

26 Aug '24

Hi, I'm looking at a source forge project with the following required libraries: 1) Boost version 1.39 or later 2) TBB (Threading Building Blocks) version 2.1 or later 3) MSM (Meta State Machine) version 1.2 or later 4) Boost Logging Library v2 #3 appears to be in the boost sandbox Does boost sandbox still exists? Boost Sandbox When boost was developed using subversion, the Boost Sandbox contained unreviewed code that is intended to eventually become a part of the Boost … [View More]

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Code using Boost::Compute builds fine on Linux, but not on Windows
by David Frischknecht 22 Aug '24

22 Aug '24

I wrote this simple program to learn how to use Boost::Compute. The program failed to build on Windows, but builds without any errors on Linux. If I modify the program to only operate on one vector, it works fine. On Windows I'm using vcpkg to pull in both Boost::Compute as well as the OpenCL SDK and I'm using Visual Studio 2022 to build the project. #define CL_TARGET_OPENCL_VERSION 300 #include <random> #include <vector> #include <boost/compute/core.hpp> #include <… [View More]boost/compute/lambda.hpp> #include <boost/compute/algorithm/transform.hpp> #include <boost/compute/container/vector.hpp> std::mt19937 rng{ std::random_device()() }; std::uniform_int_distribution<> dist(1); namespace compute = boost::compute; using namespace boost::compute::lambda; int GetRandomNumber() { return dist(rng); } int main(int argc, char* argv[]) { const auto device = compute::system::default_device(); const compute::context context(device); compute::command_queue commandQueue(context, device); std::vector<int> hostVector1(10000); std::vector<int> hostVector2(10000); std::vector<int> hostResultVector(10000); std::ranges::generate(hostVector1, GetRandomNumber); std::ranges::generate(hostVector2, GetRandomNumber); compute::vector<int> deviceVector1(hostVector1.size(), context); compute::vector<int> deviceVector2(hostVector2.size(), context); compute::vector<int> deviceResultVector(hostResultVector.size(), context); compute::copy(hostVector1.begin(), hostVector1.end(), deviceVector1.begin(), commandQueue); compute::copy(hostVector2.begin(), hostVector2.end(), deviceVector2.begin(), commandQueue); transform(deviceVector1.begin(), deviceVector1.end(), deviceVector2.begin(), deviceResultVector.begin(), _1 + _2, commandQueue); compute::copy(deviceResultVector.begin(), deviceResultVector.end(), hostResultVector.begin(), commandQueue); return 0; } Here is the build output: Build started at 11:13 PM... 1>------ Build started: Project: BoostComputeTest, Configuration: Debug x64 ------ 1>Main.cpp 1>C:\Users\Dave\source\repos\BoostComputeTest\BoostComputeTest\vcpkg_installed\x64-windows\x64-windows\include\boost\compute\iterator\transform_iterator.hpp(177,53): error C2039: 'get_buffer': is not a member of 'boost::compute::zip_iterator<boost::tuples::tuple<boost::compute::buffer_iterator<T>,boost::compute::buffer_iterator<T>,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type>>' 1>C:\Users\Dave\source\repos\BoostComputeTest\BoostComputeTest\vcpkg_installed\x64-windows\x64-windows\include\boost\compute\iterator\transform_iterator.hpp(177,53): error C2039: with 1>C:\Users\Dave\source\repos\BoostComputeTest\BoostComputeTest\vcpkg_installed\x64-windows\x64-windows\include\boost\compute\iterator\transform_iterator.hpp(177,53): error C2039: [ 1>C:\Users\Dave\source\repos\BoostComputeTest\BoostComputeTest\vcpkg_installed\x64-windows\x64-windows\include\boost\compute\iterator\transform_iterator.hpp(177,53): error C2039: T=int 1>C:\Users\Dave\source\repos\BoostComputeTest\BoostComputeTest\vcpkg_installed\x64-windows\x64-windows\include\boost\compute\iterator\transform_iterator.hpp(177,53): error C2039: ] 1>(compiling source file 'Main.cpp') 1> C:\Users\Dave\source\repos\BoostComputeTest\BoostComputeTest\vcpkg_installed\x64-windows\x64-windows\include\boost\compute\iterator\zip_iterator.hpp(172,7): 1> see declaration of 'boost::compute::zip_iterator<boost::tuples::tuple<boost::compute::buffer_iterator<T>,boost::compute::buffer_iterator<T>,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type>>' 1> with 1> [ 1> T=int 1> ] 1> C:\Users\Dave\source\repos\BoostComputeTest\BoostComputeTest\vcpkg_installed\x64-windows\x64-windows\include\boost\compute\iterator\transform_iterator.hpp(177,53): 1> the template instantiation context (the oldest one first) is 1> C:\Users\Dave\source\repos\BoostComputeTest\BoostComputeTest\Main.cpp(40,2): 1> see reference to function template instantiation 'OutputIterator boost::compute::transform<boost::compute::buffer_iterator<T>,boost::compute::buffer_iterator<T>,boost::compute::buffer_iterator<T>,boost::compute::lambda::expression<Expr>>(InputIterator1,InputIterator1,InputIterator2,OutputIterator,BinaryOperator,boost::compute::command_queue &)' being compiled 1> with 1> [ 1> OutputIterator=boost::compute::buffer_iterator<int>, 1> T=int, 1> Expr=boost::proto::exprns_::basic_expr<boost::proto::tagns_::tag::plus,boost::proto::argsns_::list2<const boost::compute::lambda::expression<boost::proto::exprns_::expr<boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term<boost::compute::lambda::placeholder<0>>,0>> &,const boost::compute::lambda::expression<boost::proto::exprns_::expr<boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term<boost::compute::lambda::placeholder<1>>,0>> &>,2>, 1> InputIterator1=boost::compute::buffer_iterator<int>, 1> InputIterator2=boost::compute::buffer_iterator<int>, 1> BinaryOperator=boost::compute::lambda::expression<boost::proto::exprns_::basic_expr<boost::proto::tagns_::tag::plus,boost::proto::argsns_::list2<const boost::compute::lambda::expression<boost::proto::exprns_::expr<boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term<boost::compute::lambda::placeholder<0>>,0>> &,const boost::compute::lambda::expression<boost::proto::exprns_::expr<boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term<boost::compute::lambda::placeholder<1>>,0>> &>,2>> 1> ] 1> C:\Users\Dave\source\repos\BoostComputeTest\BoostComputeTest\vcpkg_installed\x64-windows\x64-windows\include\boost\compute\algorithm\transform.hpp(75,12): 1> see reference to function template instantiation 'OutputIterator boost::compute::transform<boost::compute::zip_iterator<boost::tuples::tuple<boost::compute::buffer_iterator<T>,boost::compute::buffer_iterator<T>,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type>>,OutputIterator,boost::compute::detail::unpacked<BinaryOperator>>(InputIterator,InputIterator,OutputIterator,UnaryOperator,boost::compute::command_queue &)' being compiled 1> with 1> [ 1> OutputIterator=boost::compute::buffer_iterator<int>, 1> T=int, 1> BinaryOperator=boost::compute::lambda::expression<boost::proto::exprns_::basic_expr<boost::proto::tagns_::tag::plus,boost::proto::argsns_::list2<const boost::compute::lambda::expression<boost::proto::exprns_::expr<boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term<boost::compute::lambda::placeholder<0>>,0>> &,const boost::compute::lambda::expression<boost::proto::exprns_::expr<boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term<boost::compute::lambda::placeholder<1>>,0>> &>,2>>, 1> InputIterator=boost::compute::zip_iterator<boost::tuples::tuple<boost::compute::buffer_iterator<int>,boost::compute::buffer_iterator<int>,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type>>, 1> UnaryOperator=boost::compute::detail::unpacked<boost::compute::lambda::expression<boost::proto::exprns_::basic_expr<boost::proto::tagns_::tag::plus,boost::proto::argsns_::list2<const boost::compute::lambda::expression<boost::proto::exprns_::expr<boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term<boost::compute::lambda::placeholder<0>>,0>> &,const boost::compute::lambda::expression<boost::proto::exprns_::expr<boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term<boost::compute::lambda::placeholder<1>>,0>> &>,2>>> 1> ] 1> C:\Users\Dave\source\repos\BoostComputeTest\BoostComputeTest\vcpkg_installed\x64-windows\x64-windows\include\boost\compute\algorithm\transform.hpp(48,34): 1> see reference to class template instantiation 'boost::compute::transform_iterator<InputIterator,UnaryOperator>' being compiled 1> with 1> [ 1> InputIterator=boost::compute::zip_iterator<boost::tuples::tuple<boost::compute::buffer_iterator<int>,boost::compute::buffer_iterator<int>,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type>>, 1> UnaryOperator=boost::compute::detail::unpacked<boost::compute::lambda::expression<boost::proto::exprns_::basic_expr<boost::proto::tagns_::tag::plus,boost::proto::argsns_::list2<const boost::compute::lambda::expression<boost::proto::exprns_::expr<boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term<boost::compute::lambda::placeholder<0>>,0>> &,const boost::compute::lambda::expression<boost::proto::exprns_::expr<boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term<boost::compute::lambda::placeholder<1>>,0>> &>,2>>> 1> ] 1> C:\Users\Dave\source\repos\BoostComputeTest\BoostComputeTest\vcpkg_installed\x64-windows\x64-windows\include\boost\compute\iterator\transform_iterator.hpp(175,15): 1> while compiling class template member function 'int boost::compute::transform_iterator<InputIterator,UnaryOperator>::dereference(void) const' 1> with 1> [ 1> InputIterator=boost::compute::zip_iterator<boost::tuples::tuple<boost::compute::buffer_iterator<int>,boost::compute::buffer_iterator<int>,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type>>, 1> UnaryOperator=boost::compute::detail::unpacked<boost::compute::lambda::expression<boost::proto::exprns_::basic_expr<boost::proto::tagns_::tag::plus,boost::proto::argsns_::list2<const boost::compute::lambda::expression<boost::proto::exprns_::expr<boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term<boost::compute::lambda::placeholder<0>>,0>> &,const boost::compute::lambda::expression<boost::proto::exprns_::expr<boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term<boost::compute::lambda::placeholder<1>>,0>> &>,2>>> 1> ] 1> C:\Users\Dave\source\repos\BoostComputeTest\BoostComputeTest\vcpkg_installed\x64-windows\x64-windows\include\boost\iterator\iterator_facade.hpp(631,11): 1> see the first reference to 'boost::compute::transform_iterator<InputIterator,UnaryOperator>::dereference' in 'boost::iterators::iterator_core_access::dereference' 1> with 1> [ 1> InputIterator=boost::compute::zip_iterator<boost::tuples::tuple<boost::compute::buffer_iterator<int>,boost::compute::buffer_iterator<int>,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type>>, 1> UnaryOperator=boost::compute::detail::unpacked<boost::compute::lambda::expression<boost::proto::exprns_::basic_expr<boost::proto::tagns_::tag::plus,boost::proto::argsns_::list2<const boost::compute::lambda::expression<boost::proto::exprns_::expr<boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term<boost::compute::lambda::placeholder<0>>,0>> &,const boost::compute::lambda::expression<boost::proto::exprns_::expr<boost::proto::tagns_::tag::terminal,boost::proto::argsns_::term<boost::compute::lambda::placeholder<1>>,0>> &>,2>>> 1> ] 1>C:\Users\Dave\source\repos\BoostComputeTest\BoostComputeTest\vcpkg_installed\x64-windows\x64-windows\include\boost\compute\iterator\transform_iterator.hpp(177,32): error C2530: 'context': references must be initialized 1>(compiling source file 'Main.cpp') 1>Done building project "BoostComputeTest.vcxproj" -- FAILED. ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== ========== Build completed at 11:13 PM and took 03.315 seconds ========== Is there something I'm missing from my project configuration on Windows? Thanks, Dave F. [View Less]

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